The quality of handbag, luggage, and hardware products determines the flexibility, durability, and lifespan of various components when opened. Generally, metal ......
The quality of electroplated products is directly related to the embryo of hardware products. There are usually two ways to electroplate hardware accessories fo......
When punching and blanking, usually small holes are punched first, followed by large holes; First, the waste material around the forming area is punched off, an......